Marquard J. Schwarz (July 30, 1887 – February 17, 1968) was an American freestyle swimmer who competed in the 1904 Summer Olympics in Athens and the 1906 Summer Olympics in St. Louis, Missouri.

[1] He competed as a member of the Missouri Athletic Club and attended Yale University.

[2] In the 1904 Olympics, he won a bronze medal as a member of American 4x50 yard freestyle relay team.

In the 1906 Olympics, he came in seventh in the 100 meters freestyle and fourth as a member of the 4x250 meter freestyle relay team.

This article about a swimming Olympic medalist of the United States is a stub.